Why the Y Combinator model don't work/exist in other countries?
If this model spread to other countries it will be awesome, imagine the number of good ideas dying, when they just need a push.
>People sometimes think they could improve the startup scene in their town by starting something like Y Combinator there, but in fact it will have near zero effect
http://www.paulgraham.com/maybe.html
Y Combinator's first batch was in Boston, this essay explain why being in Silicon Valley in important and why it's very difficult to replicate.
In fairness, the TechStars model isn't quite the same model.
For instance, YC rather explicitly doesn't provide shared office spaces. The shared office space of a TechStars location is a large startup community galvanizer in the cities where TechStars has set up shop - and partially offsets the need to be in the Valley for those companies.
There's no question that TechStars is tweaking the YC model subtilely in its attempts to get global outreach. (This is a good thing, the world could use more experimentation.)